Title
Cluster size effect observed for gold nanoparticles synthesized by sol-gel technique as studied by X-ray photoelectron spectroscopy
Abbreviated Journal Title
Nanostruct. Mater.
Keywords
BINDING-ENERGY SHIFTS; METAL-CLUSTERS; ELECTRONIC-STRUCTURE; AMORPHOUS-CARBON; PHOTOEMISSION; PALLADIUM; SILVER; SUBSTRATE; PARTICLES; COPPER; Materials Science, Multidisciplinary
Abstract
Gold nanoparticles have been synthesized by sol-gel technique. AFM analysis shows the presence of less than or equal to 12-14 nm and 40-60 nm sized particles for H2S/not heated and H2S/heated samples respectively. XPS analysis of H2S/not heated sample reveals that the core-level Au 4f7/2 B.E. is shifted by +0.3 eV with increase in the FWHM by 0.2 eV relative to the respective bull; values of 84.0 eV and 1.1 eV. The results are interpreted in terms of the changes in the electronic structure due to finite cluster size and creation of +ve charge over the surface of cluster during the photoemission process itself. The electronic structure of Au nanoparticles (or clusters) produced by present sol-gel technique is compared with that of Au clusters deposited by evaporation method described in the literature. (C) 2000 Acta Metallurgica Inc.
Journal Title
Nanostructured Materials
Volume
11
Issue/Number
8
Publication Date
1-1-1999
Document Type
Article
Language
English
First Page
1181
Last Page
1193
WOS Identifier
ISSN
0965-9773
Recommended Citation
"Cluster size effect observed for gold nanoparticles synthesized by sol-gel technique as studied by X-ray photoelectron spectroscopy" (1999). Faculty Bibliography 1990s. 2853.
https://stars.library.ucf.edu/facultybib1990/2853
Comments
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